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next-cube.c: add dummy Ethernet register to allow diagnostic to timeout

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Add a dummy register at address 0x6000 in the MMIO memory region to allow the
initial diagnostic test to timeout rather than getting stuck in a loop
continuously writing "en_write: tx not ready" to the console.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Thomas Huth <huth@tuxfamily.org>
Message-ID: <20231220131641.592826-2-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
This commit is contained in:
Mark Cave-Ayland 2023-12-20 13:16:31 +00:00 committed by Thomas Huth
parent 191710c221
commit 2a287eabb1
1 changed files with 4 additions and 0 deletions
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hw/m68k/next-cube.c
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@ -429,6 +429,10 @@ static uint32_t scr_readb(NeXTPC *s, hwaddr addr)
/* Hack: We need to have this change consistently to make it work */ /* Hack: We need to have this change consistently to make it work */
return 0xFF & clock(); return 0xFF & clock();
/* For now return dummy byte to allow the Ethernet test to timeout */
case 0x6000:
return 0xff;
default: default:
DPRINTF("BMAP Read B @ %x\n", (unsigned int)addr); DPRINTF("BMAP Read B @ %x\n", (unsigned int)addr);
return 0; return 0;